CN102042384A - Pulley for use with toothed belt - Google Patents

Pulley for use with toothed belt Download PDF

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Publication number
CN102042384A
CN102042384A CN2010105055799A CN201010505579A CN102042384A CN 102042384 A CN102042384 A CN 102042384A CN 2010105055799 A CN2010105055799 A CN 2010105055799A CN 201010505579 A CN201010505579 A CN 201010505579A CN 102042384 A CN102042384 A CN 102042384A
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CN
China
Prior art keywords
wheel used
tooth
belt wheel
belt
synchronous belt
Prior art date
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Pending
Application number
CN2010105055799A
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Chinese (zh)
Inventor
金森善
友渕正人
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Tsubakimoto Chain Co
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Tsubakimoto Chain Co
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Filing date
Publication date
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Publication of CN102042384A publication Critical patent/CN102042384A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/17Toothed wheels
    • F16H55/171Toothed belt pulleys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/0006Vibration-damping or noise reducing means specially adapted for gearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

The invention provides a toothed-belt pulley that is capable of reducing pneumatic and plosive sounds and of reducing engagement noises while stably transmitting rotational movements by suppressing widthwise wobbling of a toothed belt and while reducing a manufacturing cost of the pulley by simplifying its manufacturing process and of improving a production yield by shortening its manufacturing time. The toothed-belt pulley (100) has a disk (110) whose inner circumference is fittingly attached to a rotary shaft (101) and which is provided with teeth (111) to be engaged with the toothed belt (150) around the outer circumference and flanges (120) erected on the both outer sides of the toothed belt, wherein each of the teeth (111) has a concaved recess (112) with which the toothed belt (150) deformably engages in the widthwise center part thereof.

Description

Belt wheel used for synchronous belt
Technical field
The present invention relates to and the synchronous belt wheel used for synchronous belt that engages with transferring rotational motion of being with.
Background technique
In the past, periphery had the tooth that engage with synchronous band and uprightly was arranged on this that to be with the belt wheel used for synchronous belt of the flange plate outside both sides synchronously be well-known.
Known belt wheel used for synchronous belt 500 uprightly is provided with flange plate 520 in the both sides of the tooth 511 that is meshed with synchronous band as shown in Figure 13, can suppress synchronously band to the vibration of width direction by flange plate 520, and transferring rotational motion stably.But then, when belt wheel used for synchronous belt 500 was meshed with synchronous band, the path of discharging compressed air only was the sidepiece of synchronous band and the micro-gap between the flange plate 520, so have fluid sound or break very large problem.
In addition, also have a kind of known belt wheel used for synchronous belt: this belt wheel used for synchronous belt with exhausting air before synchronous band is meshed, the generation of the fluid sound when reducing compressed air from clearance leakage or the sound that breaks is to reduce noise.
This known belt wheel used for synchronous belt 600 as Figure 14 extremely as shown in Figure 16, with synchronously with 650 teeth that are meshed 611 on form the notch 612 of circumferencial direction, this belt wheel used for synchronous belt 600 be with 650 air is discharged to tooth bottom 613 directions from notch 612 synchronously, reduce thus compressed air from synchronously with the generation of the clearance leakage of 650 teeth that are meshed 611 caused fluid sound or the sound that breaks, to reduce noise (referring to patent documentation 2) to the left and right sides of belt wheel used for synchronous belt 600.
[prior art document]
[patent documentation]
[patent documentation 1] TOHKEMY 2001-276939 number (the 4th page, Fig. 3).
The microfilm (3-5 page or leaf, Fig. 1 to Fig. 3) of [patent documentation 2] Japanese utility model application clear No. 61178303 (opening clear 62-87251 communique in fact).
Summary of the invention
For the fluid sound that alleviates above-mentioned known belt wheel used for synchronous belt 500 or the very large problem of sound of breaking, belt wheel used for synchronous belt 600 is such as is well known, consideration forms the notch 612 of circumferencial direction on tooth 611, but known belt wheel used for synchronous belt 600 need form notch 612 with the roughly the same circumferencial direction of the whole height of tooth 611 by cutting etc., so, exist manufacture cost surging, and manufacturing time is elongated and make the low problem of manufacturing efficiency because of manufacturing process increases.
In addition, because of the narrow width of notch 612, the degree of depth is a limit with the height of tooth 611 also, so the air quantity of discharging is limited, and can't prevent the engagement sound of tooth 611 with synchronously with 650 driving fits the time, so there is the lower problem of reduction effect of noise.
For solving foregoing prior art problems, the invention provides a kind of belt wheel used for synchronous belt, cut down manufacture cost by simplifying manufacturing process, shorten manufacturing time, thereby enhance productivity, can suppress simultaneously band synchronously to the vibration of width direction realizing the stable rotation transmission of movement, and can reduce fluid sound or the generation of the sound that breaks and engagement sound to reduce noise.
The technical program 1 related invention is a kind of belt wheel used for synchronous belt, it is the belt wheel used for synchronous belt that constitutes by disc, the interior periderm of described disc is chimeric and be fixed in running shaft, the periphery of described disc of while has and is with tooth that engages and the flange plate that uprightly is provided with in the outside of these synchronous band both sides synchronously, above-mentioned tooth has the depressed part of concavity at the central part of width direction, band deforms and engages with the depressed part of this concavity synchronously, addresses the above problem thus.
The invention that the technical program 2 is related, the structure of the belt wheel used for synchronous belt of being put down in writing except technological scheme 1, above-mentioned depressed part is formed on the whole periphery of the disc of the tooth ends, flank of tooth portion and the tooth bottom that comprise above-mentioned tooth, have the fixing degree of depth of fixed width and distance surface, further address the above problem thus.
The invention that the technical program 3 is related, the structure of the belt wheel used for synchronous belt of being put down in writing except technological scheme 1 or technological scheme 2, above-mentioned depressed part has protrusion in the part, further addresses the above problem thus.
The invention that the technical program 4 is related, except the structure of technological scheme 1 any belt wheel used for synchronous belt of being put down in writing to the technological scheme 3, above-mentioned depressed part has the groove part of darker concavity in the part, further address the above problem thus.
The invention that the technical program 5 is related, except the structure of technological scheme 1 any belt wheel used for synchronous belt of being put down in writing to the technological scheme 4, above-mentioned flange plate has a plurality of through holes that connect on above-mentioned running shaft direction, further address the above problem thus.
The invention that the technical program 6 is related, the structure of the belt wheel used for synchronous belt of being put down in writing except technological scheme 5, above-mentioned a plurality of through holes are arranged at the corresponding position of increment with the tooth of above-mentioned disc, further address the above problem thus.
The belt wheel used for synchronous belt of the technical program 1 related invention is the belt wheel used for synchronous belt that is made of disc, the interior periderm of described disc is chimeric and be fixed in running shaft, the periphery of described disc has and is with the tooth that engages synchronously and is set at this flange plate in the outside of band both sides synchronously simultaneously, wherein, tooth has the depressed part of concavity at the central part of width direction, and band deforms and engages with the depressed part of this concavity synchronously.Can suppress of the vibration of synchronous band by flange plate by said structure to width direction, thereby can realize transferring rotational motion stably, simultaneously when belt wheel used for synchronous belt is meshed with synchronous band, compressed air is discharged from depressed part, thus the generation of the fluid sound can reduce compressed air from clearance leakage time the or the sound that breaks.
In addition, synchronously band deforms and engages, also residual clearance and can driving fit when band engaging synchronously thus, thus reduce engagement sound; Depressed part can be more shallow simultaneously, and can under the state that just has at first depressed part, form disc, perhaps only the cutting by minute quantity forms depressed part, can simplify manufacturing process thus and make manufacture cost cut down, and shortens manufacturing time and makes manufacturing efficiency improve.
The effect that the belt wheel used for synchronous belt that the belt wheel used for synchronous belt of the technical program 2 related inventions is put down in writing except technological scheme 1 produces, because depressed part is formed on the whole periphery of the disc of the tooth ends, flank of tooth portion and the tooth bottom that comprise tooth, and the degree of depth that has fixed width and fix apart from the surface, so synchronous band in conjunction with the time residual space be communicated with in a circumferential direction, therefore compressed air is easy to discharge more when belt wheel used for synchronous belt is meshed with synchronous band, can further reduce fluid sound or the generation of the sound that breaks.
The effect that the belt wheel used for synchronous belt that the belt wheel used for synchronous belt of the technical program 3 related inventions is put down in writing except technological scheme 1 or technological scheme 2 produces, depressed part has protrusion in the part, thus can be when further guaranteeing band engaging synchronously reliably residual space, and compressed air is easy to discharge more when belt wheel used for synchronous belt is meshed with synchronous band, can further reduce fluid sound or the generation of the sound that breaks.
The belt wheel used for synchronous belt of the technical program 4 related inventions is except technological scheme 1 effect that any belt wheel used for synchronous belt of being put down in writing produces to the technological scheme 3, depressed part has the groove part of darker concavity in the part, thus when band engaging synchronously, except residual space, also fluted connection in a circumferential direction, so compressed air was easy to discharge more when belt wheel used for synchronous belt was meshed with synchronous band, can further reduce fluid sound or the generation of the sound that breaks.
The belt wheel used for synchronous belt of the technical program 5 related inventions is except technological scheme 1 effect that any belt wheel used for synchronous belt of being put down in writing produces to the technological scheme 4, flange plate has a plurality of through holes that connect on the running shaft direction, when being meshed with synchronous band, belt wheel used for synchronous belt discharges from through hole thus along bandwidth direction flow air, can prevent compressed air from flange plate and the fluid sound the during clearance leakage of band or the generation of breaking synchronously, noise is minimized.
The effect that the belt wheel used for synchronous belt that the belt wheel used for synchronous belt of the technical program 6 related inventions is put down in writing except technological scheme 5 produces, a plurality of through holes are arranged at the corresponding position of increment with the tooth of disc, the most compressed part of air when through hole is positioned at belt wheel used for synchronous belt and band is meshed synchronously thus, so can further discharge compressed air in a large number, prevent fluid sound or the generation of the sound that breaks, noise is minimized.
Description of drawings
In the accompanying drawing:
Fig. 1 is the stereogram of the use form of belt wheel used for synchronous belt of the present invention.
Fig. 2 is the sectional view of the belt wheel used for synchronous belt of first embodiment of the invention.
Fig. 3 is the stereogram of tooth of the belt wheel used for synchronous belt of first embodiment of the invention.
Fig. 4 be Fig. 2 engaging the sectional view of state of synchronous band.
Fig. 5 is the enlarged view of Fig. 4.
Fig. 6 is the stereogram of Fig. 4.
Fig. 7 is the sectional view of the belt wheel used for synchronous belt of second embodiment of the invention.
Fig. 8 is the stereogram of tooth of the belt wheel used for synchronous belt of second embodiment of the invention.
Fig. 9 is the sectional view of the belt wheel used for synchronous belt of third embodiment of the invention.
Figure 10 is the stereogram of tooth of the belt wheel used for synchronous belt of third embodiment of the invention.
Figure 11 is the side view of the belt wheel used for synchronous belt of fourth embodiment of the invention.
Figure 12 A and 12B are the characteristic comparison diagrams of belt wheel used for synchronous belt of the present invention.
Figure 13 is the stereogram of belt wheel used for synchronous belt in the past.
Figure 14 is the side view of the use form of other belt wheel used for synchronous belt in the past.
Figure 15 is the plan view of other belt wheel used for synchronous belt in the past.
Figure 16 is the sectional view of other belt wheel used for synchronous belt in the past.
[description of reference numerals]
100,200,300,400,500,600 ... belt wheel used for synchronous belt
101 ... running shaft
110,210 310 ... disc
111,211,311,411,511,611 ... tooth
112,212,312 ... depressed part
612 ... notch
113,213,313,613 ... the tooth bottom
114,214,314 ... tooth ends
115,215,315 ... flank of tooth portion
216 ... groove
317 ... protrusion
120,220,320,420,520 ... flange plate
421 ... through hole
150,650 ... be with synchronously
S ... the space
Embodiment
The present invention is a kind of belt wheel used for synchronous belt that is made of disc, the interior periderm of described disc is chimeric and be fixed in running shaft, simultaneously, the periphery of described disc has and is with the tooth that engages synchronously and uprightly is arranged at this flange plate in the outside, band both sides synchronously, wherein, tooth has the depressed part of concavity at the central part of width direction, and band deforms and is fastened in this depressed part synchronously.As long as the present invention can cut down manufacture cost, shorten manufacturing time to enhance productivity, thereby and can suppress synchronous band and realize the stable delivery that rotatablely moves to the vibration of width direction, and can alleviate fluid sound or the generation and the engagement sound of the sound that breaks, reduce noise, the specific embodiment of the present invention can be arbitrarily.
That is, the material of the disc of belt wheel used for synchronous belt of the present invention both can be metals such as iron, can also be material arbitrarily such as resin, pottery.
In addition, the depressed part that is arranged on the tooth of belt wheel used for synchronous belt both can just be provided with from initial when making disc, also can form afterwards by cutting etc.
In addition, flange plate can form as one with disc, also can be chimeric and be fixed on the disc with the flange plate that forms with the disc split, can also for: in the flange plate of both sides one forms as one with disc, and chimeric and fixing another flange plate of forming of split.
In addition, under the situation of chimeric on the disc and fixed flange, both can also can utilize screw bolt and nut etc. to fix by being pressed into or interference fit such as shrink fit is carried out chimeric fixingly, it be chimeric fixing to utilize any means to carry out.
In addition, the disc of belt wheel used for synchronous belt of the present invention both can by be pressed into or interference fit such as shrink fit and running shaft chimeric and fixing, also can utilize screw bolt and nut etc. to fix, it is chimeric and fixing to utilize any means to carry out.In addition, can also adopt keyway and splined shaft.
Below, just describe based on accompanying drawing as the belt wheel used for synchronous belt of the embodiment of the invention.
The belt wheel used for synchronous belt 100 of the embodiment of the invention, as shown in Figure 1, it constitutes: the disc 110 that has flange plate 120 at the both sides peripheral part is by chimeric and be fixed in running shaft 101, and fastens with the tooth 111 that is arranged at the periphery of disc 110 with 150 synchronously, thus transferring rotational motion.
[first embodiment]
Belt wheel used for synchronous belt 100 as the first embodiment of the present invention, as Fig. 2, as shown in Figure 3: the periphery that has a disc 110 of flange plate 120 at the both sides peripheral part is provided with synchronously with 150 teeth that are meshed 111, and forms depressed part 112 at the central part of tooth 111 width directions.This depressed part 112 spreads all over tooth ends 114, flank of tooth portion 115 and the tooth bottom 113 whole peripheries at interior disc 110 that comprise tooth 111, has the fixing degree of depth of fixed width and distance surface.
If synchronously be with 150 therewith belt wheel used for synchronous belt 100 be meshed, then as Fig. 4 to shown in Figure 6: only synchronously with 113 contacting bottom tooth ends 114, flank of tooth portion 115 and the tooth of the two end part of 150 width directions and original tooth 111, synchronously with 150 central part because of the rotating center direction deflection of depressed part 112 to belt wheel used for synchronous belt 100.
At this moment, though be with synchronously 150 be arciform deflection and make central authorities near the contact depressed part 112, near the two end part of depressed part 112 with between being with 150 synchronously formation space S.
In addition, though in flank of tooth portion 115 and be with synchronously between 150, also deform with 150 tooth synchronously, near the two end part of depressed part 112, form the space that is connected with space S at least.
Like this, discharge from the space S of depressed part 112, so the fluid sound can reduce the micro-gap of compressed air beyond the S of space and leak the time or the generation of the sound that breaks at belt wheel used for synchronous belt 100 compressed air when being meshed with 150 synchronously.
In addition, owing to the distortion with 150 synchronously engages, so also residual clearance S and can driving fit when being with 150 engagings synchronously, therefore engagement sound is minimized and need not to discharge fully compressed air, and synchronously with 150 whens engaging residual space S be communicated with in a circumferential direction, so compressed air just is easy to discharge more, can further reduce fluid sound or the generation of the sound that breaks.
In addition, depressed part 112 can be more shallow, can be to form discs 110 from just having these states of depressed part 112 at first, and perhaps only the cutting by minute quantity forms depressed part 112, make manufacture cost cut down thereby simplify manufacturing process, manufacturing time shortens makes manufacturing efficiency improve.
[second embodiment]
Belt wheel used for synchronous belt 200 as the second embodiment of the present invention, as Fig. 7, shown in Figure 8: the periphery that has a disc 210 of flange plate 220 at the both sides peripheral part is provided with and the tooth 211 that is meshed of band synchronously, and form depressed part 212, and has the groove part 216 of the concavity of the darker whole periphery that spreads all over disc 210 in the central authorities of depressed part 212 width directions at the central part of tooth 211 width directions.Above-mentioned depressed part 212 spreads all over tooth ends 214, flank of tooth portion 215 and the tooth bottom 213 whole peripheries at interior disc 210 that comprise tooth 211, has the fixing degree of depth of fixed width and distance surface.
Like this, except form near the two end part of depressed part 212 the residual space, also form the space by groove part 216, space and groove part 216 from depressed part 212 when belt wheel used for synchronous belt 200 is meshed with synchronous band are discharged more compressed air, so the fluid sound in the time of can reducing the micro-gap of compressed air beyond from the space and leak or the generation of the sound that breaks make engagement sound lower simultaneously.
In addition, a plurality of groove parts 216 can be set, in addition, can spread all over whole periphery and be provided with, also can only be arranged at tooth portion.
[the 3rd embodiment]
Belt wheel used for synchronous belt 300 as the third embodiment of the present invention, as Fig. 9, as shown in Figure 10: the periphery setting and the synchronous tooth 311 that is meshed of band that have the disc 310 of flange plate 320 at the both sides outer peripheral portion, and form depressed part 312, the protrusion 317 that also has the whole periphery that spreads all over disc 310 simultaneously in the central authorities of depressed part 312 width directions at the central part of tooth 311 width directions.Above-mentioned depressed part 312 spreads all over tooth ends 314, flank of tooth portion 315 and the tooth bottom 313 whole peripheries at interior disc 310 that comprise tooth 311, has the fixing degree of depth of fixed width and distance surface.
Like this, even band is arciform deflection synchronously, also be to contact with the protrusion 317 of the central authorities of depressed part 312 width directions, thus in the both sides of protrusion 317 residual clearance, simultaneously near the two end part of depressed part 312 residual space also become big, belt wheel used for synchronous belt 300 is discharged more compressed air when synchronously band is meshed from the space, so the fluid sound in the time of can reducing the micro-gap of compressed air beyond from the space and leak or the generation of the sound that breaks make engagement sound lower simultaneously.
In addition, a plurality of protrusions 317 can be set, in addition, can spread all over whole periphery and be provided with, also can only be arranged at tooth ends 314, flank of tooth portion 315 or tooth bottom 313.
[the 4th embodiment]
Belt wheel used for synchronous belt 400 as the fourth embodiment of the present invention, as shown in figure 11: the tooth 411 that periphery is provided with and synchronous band is meshed that has the disc 410 of flange plate 420 at the both sides peripheral part, and similarly form depressed part at the central part of tooth 411 width directions with above-mentioned first to the 3rd embodiment, simultaneously at the through hole 421 that perforation is set with the corresponding position of the increment of each tooth 411 respectively of flange plate 420.
Like this, be compressed when being meshed and when the air that the flange plate direction is discharged is suppressing pressure and flow velocity and increases with synchronous band, discharge from through hole 421, so the fluid sound can alleviate the micro-gap of compressed air between synchronous band and flange plate 420 and leak the time or the generation of the sound that breaks.
In addition, through hole 421 can be provided with any size, shape.
According to the present invention, as shown in figure 12: compare with belt wheel used for synchronous belt in the past, it is about 10% to reduce noises as above-mentioned first embodiment's belt wheel used for synchronous belt 100, and it is about 18% to reduce noises as above-mentioned the 4th embodiment's belt wheel used for synchronous belt 400, and it is considerable to reduce anti noise.
In addition,, compare, only reduce by 2%, be in unquestioned substantially level as above-mentioned first embodiment's belt wheel used for synchronous belt 100 with belt wheel used for synchronous belt in the past at following durability to reduce in the distortion of synchronous band.
In sum, the present invention has following remarkable result: can cut down manufacturing cost, shorten manufacturing time, thereby enhance productivity; Simultaneously can also provide a kind of belt wheel used for synchronous belt etc., this belt wheel used for synchronous belt can suppress Timing Belt to the vibration of width, thus the stable delivery that realization rotatablely moves; And can reduce fluid sound or the generation of the sound that breaks, alleviate engagement sound, reduce noise etc.

Claims (6)

1. belt wheel used for synchronous belt, constitute by disc, the interior periderm of described disc is chimeric and be fixed in running shaft, and the periphery of described disc has and is with tooth that engages and the flange plate that uprightly is provided with in the outside of described synchronous band both sides synchronously, it is characterized in that:
Described tooth has the depressed part of concavity at the central part of width direction, and band deforms and engages with the depressed part of described concavity synchronously.
2. belt wheel used for synchronous belt according to claim 1 is characterized in that:
Described depressed part is formed on the whole periphery of the disc of the tooth ends, flank of tooth portion and the tooth bottom that comprise described tooth, has the fixing degree of depth of fixed width and distance surface.
3. belt wheel used for synchronous belt according to claim 1 and 2 is characterized in that:
Described depressed part has protrusion in the part.
4. according to each described belt wheel used for synchronous belt in the claim 1 to 3, it is characterized in that:
Described depressed part has the groove part of darker concavity in the part.
5. according to each described belt wheel used for synchronous belt in the claim 1 to 4, it is characterized in that:
Described flange plate has a plurality of through holes that connect on described running shaft direction.
6. belt wheel used for synchronous belt according to claim 5 is characterized in that:
Described a plurality of through hole is arranged at the corresponding position of increment with the tooth of described disc.
CN2010105055799A 2009-10-15 2010-09-30 Pulley for use with toothed belt Pending CN102042384A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-238073 2009-10-15
JP2009238073A JP4980405B2 (en) 2009-10-15 2009-10-15 Toothed belt pulley

Publications (1)

Publication Number Publication Date
CN102042384A true CN102042384A (en) 2011-05-04

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CN2010105055799A Pending CN102042384A (en) 2009-10-15 2010-09-30 Pulley for use with toothed belt

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US (1) US20110092326A1 (en)
JP (1) JP4980405B2 (en)
KR (1) KR101454053B1 (en)
CN (1) CN102042384A (en)
TW (1) TW201113453A (en)

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JP4980405B2 (en) 2012-07-18
TW201113453A (en) 2011-04-16
US20110092326A1 (en) 2011-04-21
JP2011085188A (en) 2011-04-28
KR101454053B1 (en) 2014-10-27
KR20110041399A (en) 2011-04-21

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Application publication date: 20110504